EP 4357399 A1 20240424 - STABILIZED POLYETHER-ETHER-KETONE (PEEK) COMPOSITION
Title (en)
STABILIZED POLYETHER-ETHER-KETONE (PEEK) COMPOSITION
Title (de)
STABILISIERTE POLYETHER-ETHER-KETON (PEEK)-ZUSAMMENSETZUNG
Title (fr)
COMPOSITION STABILISÉE DE POLYÉTHER-ÉTHER-CÉTONE (PEEK)
Publication
Application
Priority
EP 22202027 A 20221017
Abstract (en)
The present invention concerns a polyether ether ketone (PEEK)composition containing lanthanum hydroxide. It was found that lanthanum hydroxide can be used for long-term stabilization of a PEEK composition over a period of 500 hours or more, preferably 1000 to 3000 hours or more at a temperature of from 210°C to 300°C, preferably 230°C to 270°C.
IPC 8 full level
C08K 3/22 (2006.01)
CPC (source: EP)
C08K 3/22 (2013.01); C08K 2003/221 (2013.01); C08K 2201/005 (2013.01)
C-Set (source: EP)
Citation (applicant)
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Citation (search report)
- [AD] US 3925307 A 19751209 - DAHL KLAUS JOACHIM, et al
- [A] WO 2017199600 A1 20171123 - YAZAKI CORP [JP]
- [A] US 2020198211 A1 20200625 - HOFFMANN BOTHO [CH], et al
- [A] DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; 12 June 2020 (2020-06-12), XU, XIAOPENG ET AL: "Rare earth composite heat stabilizer and preparation method thereof", XP002808759, retrieved from STN Database accession no. 2020:1130028 & CN 111269498 A 20200612 - HANGZHOU RUMO TECH CO LTD
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22202027 A 20221017; EP 2023078691 W 20231016